The Glock 19 is arguably the most popular handgun in America — a compact 9mm that carries 15+1 and does everything from concealed carry to home defense. It's a little larger than a micro-compact, but with the right holster it still conceals comfortably inside the waistband. Here's the best IWB holster for the Glock 19, and the exact size to order.
The Best IWB Holster for the Glock 19: Mainstay™ Clipless IWB
For the Glock 19, we recommend the Mainstay™ Clipless IWB Holster in size 5C. The Mainstay's silicone-coated, clipless exterior grips the inside of your waistband and stays put with no belt clip to print or snag — and its soft, flexible body keeps a compact like the 19 comfortable through a full day of carry. It fully covers the trigger guard and works for appendix, strong-side, and small-of-back carry.
Running an optic or light? Match the size to your setup:
- Glock 19 (bare): size 5C
- + red dot optic: size 5C-RDO
- + weapon light: size 5CL
- + optic and light: size 5CL-RDO
The same 5C fit also covers other compact Glocks like the 19X, 23, 32, 38, and 45.
Why the Mainstay Works for the Glock 19
The Glock 19 hits the sweet spot between capacity and concealability, but a compact carries more weight than a micro — so comfort and retention matter. The Mainstay flexes with your body while holding the pistol securely and keeping the trigger protected. Made in the USA and priced under $35, it's one of our most popular IWB holsters.
Complete Your Glock 19 Carry Setup
Support the extra weight of a compact with a reinforced gun belt, and browse the rest of our IWB holsters for a backup option. New to carrying? Our everyday carry (EDC) guide covers the full loadout.
Frequently Asked Questions
What size Mainstay holster fits the Glock 19?
The Glock 19 fits the Mainstay Clipless IWB Holster in size 5C. Choose 5C-RDO for a red dot, 5CL for a weapon light, or 5CL-RDO for both.
Will the same holster fit other compact Glocks?
Yes. Size 5C also fits the Glock 19X, 23, 32, 38, and 45, which share the compact frame.
Is the Glock 19 too big for IWB carry?
No. The Glock 19 is one of the most commonly carried IWB pistols. With a comfortable holster and a proper gun belt, it conceals well for most body types.
Ready to carry? Get the Mainstay Clipless IWB Holster in size 5C for your Glock 19.